Feedstock origin decides the real climate value of biochar. Production teams play the first role in protecting this value.

Why it matters
• Unsustainable biomass weakens or cancels removals.
• Poor sourcing raises audit risk.
• Clear evidence avoids delays with buyers and verifiers.

What producers should verify
• Region where residues come from.
• Supplier identity and basic permits.
• Legal harvest or legal processing.
• Residue volumes that match local production data.
• A simple chain of custody that shows how biomass moves.

Warning signs
• No paperwork.
• Large “residue” volumes without proof.
• High-risk regions without safeguards.
• Unclear forest origin.

What to document
• Invoices or receipts.
• Proof that residues are a byproduct of legal operations.
• Land-use information for upstream suppliers.
• A short note that lists feedstock risks and how you manage them.

Producers who keep this evidence ready build trust early. It protects climate value and reduces project delays.